Southern Hemisphere

Snow and ice data provided by the National Center for Environmental Prediction/NOAAsend comments about this site

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The 40Mb animation at the left shows the dramatic loss of multiyear sea ice over the 2007 year. Multiyear sea ice is older and generally thicker ice - sea ice that has survived at least one melt season (shown in brighter white).

Compare side-by-side images of Northern Hemisphere sea ice extent for any two dates in the satellite record (1979-present).